Taking ROTH 401K Distribution under CARES Act

Hello - I considering taking an early withdrawal distribution of $50,000 out of my existing roth 401k under the CARES distribution and trying to understand what my exposure will be.  To my understanding, assuming I am a qualified individual, my tax and fee exposure here will be $0?  Since it is a roth 401k... this will not count as additional income since I have already paid the taxes within the investment vehicle (hence $0 tax exposure)? and since this will be a CARES distribution, the 10% early withdrawal penalty is waived (hence why $0 fee exposure)?

 

Is this train of thought correct or am I missing something?

 

On a side note, does anyone know what documentation the IRS will ask me provide to prove I am qualified to withdraw under the CARES act?

 

Thank you!